Adam Clarke's Commentary on the Bible - Exodus 23:19
Thou shalt not seethe a kid in his mother's milk - This passage has greatly perplexed commentators; but Dr. Cudworth is supposed to have given it its true meaning by quoting a MS. comment of a Karaite Jew, which he met with, on this passage. "It was a custom of the ancient heathens, when they had gathered in all their fruits, to take a kid and boil it in the milk of its dam; and then, in a magical way, to go about and besprinkle with it all their trees and fields, gardens and orchards;... read more
John Gills Exposition of the Bible Commentary - Exodus 23:27
And I will send my fear before thee ,.... What should cause fear among the nations of the land of Canaan; either the hornets mentioned in the next verse as the explanative of this; or the fame of his mighty works, which he had done for Israel in Egypt, at the Red sea, and in the wilderness; which struck the inhabitants of Canaan with such a panic, that they were ready to faint and melt away, and lost all courage, Joshua 2:9 . and will destroy all the people to whom thou shalt come ;... read more